Color

#0d367d

#0d367d
hex#0d367d
rgbrgb(13, 54, 125)
hslhsl(218, 81%, 27%)
oklchoklch(0.353 0.129 260.8)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.042

Colors that go with #0d367d

Powder Blue, Steel Blue and Olive Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#7d540d

#0d6e7d · #1c0d7d

#7d0d36 · #367d0d

Split-complementary

Open in tool →

#7d1c0d · #6e7d0d

#7d0d6e · #7d540d · #0d7d1c

Contrast

#0d367d as textRatioAAAA largeAAAFix
Aaon white
11.41:1passpasspassPasses AAA — no fix needed.
Aaon black
1.84:1failfailfail
  • AA: use #2b70e9 as the text (4.6:1)
  • AAA: use #6296ef as the text (7.13:1)
  • AA: or shift the background to #a3a3a3 (4.52:1)
  • AAA: or shift the background to #cccccc (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d367d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#0d367d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d367d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0d367d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d367d-9ca6c4-df644e-201f2d-e9f0f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md